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Obviously their is a considerable price difference between the two options. I would only put option 1 on my old cervelo r3 as my r3 sl has super record cranks which are too nice and expensive to be sat in a cupboard, but would be happier if they were replaced by the campagnolo srm.

I don't mind which bike the srm goes on, my concern is are the fsa grossamer cranksrubbish? I have read quite a lot of poor reviews on these cranks regarding reliability, squeeking noise and shifting. However they were not srm and I think the issue maybe down to the installation, which I was told by a srm dealer. Option 2 is super expensive, but would give me 100% peace of mind in quality and shifting performance. Do you think I am worrying unnecessarily? Any feedback on both systems would be appreciated.

How important is the low Q-factor of the Campagnolo cranks to you? It seems they are the only system with a Q-factor of 145.5mm, the others are 147mm (or more)? At least I couldn't find anything close to the Campagnolo cranks while looking through the options on srm.de.

claus wrote:How important is the low Q-factor of the Campagnolo cranks to you? It seems they are the only system with a Q-factor of 145.5mm, the others are 147mm (or more)? At least I couldn't find anything close to the Campagnolo cranks while looking through the options on srm.de.

It's not important at all. For a SRM meter I have decided I won't be really happy unless I purchase the campagnolo record as I like the idea of uniformity of a groupset. I could live with the FSA only because it's so much cheaper, but in my eyes it is a poor substitute aesthetically and quality.

The other option would be a powertap G3 laced on ambrosio excellight rims. Less exotic than the SRM and would mean a heavier wheelset than my kysrium SR (1450g), but cheaper than the FSA.

Does anybody know the weight of such a wheelset? Front hub would be campagnolo record or maybe a chris king. Important as I will be using them in the Pyrenees a lot.

Decisions, decisions. I wish campagnolo would do a chorus srm crankset.

Assuming 430 grams/pr Ambrosio Excellight rim, 325 grams for the G3 Powertap hub (these weights I have scribbled in an excel sheet once i was considering a Powertap build), and a 100 gram front hub, you end up at ca. 1565 gram (ex. rimtape), assuming a 24/28 build with CX-Rays.